NSN 5306-00-721-3108

Part Details | MACHINE BOLT

5306-00-721-3108 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Alternate Parts: S611021071, S6110-21071, 5306-00-721-3108, 00-721-3108, 5306007213108, 007213108

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-721-310801847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-00-721-3108
Part Number Cage Code Manufacturer
S6110-2107178286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
Technical Data | NSN 5306-00-721-3108
Characteristic Specifications
HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.688 INCHES MINIMUM
FASTENER LENGTH1.750 INCHES NOMINAL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.435 INCHES NOMINAL
WIDTH BETWEEN FLATS0.494 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.740 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.099 INCHES NOMINAL
GRIP LENGTH1.062 INCHES NOMINAL
FEATURES PROVIDED FINISHED HEAD